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The ability of an organism to enter a host and cause disease.



the ability of a microorganism to cause infectious disease. Pathogenicity varies with the virulence of the infectious agent and with the susceptibility of the infected organisms. Thus for every microbe, it is a relative characteristic that depends on the species, age, sex, and physiological condition of the infected organism.

Pathogenicity develops as a result of a microbial species’ long evolutionary adaptation to the presence of a particular host species. Individual strains from a single microbial species differ in pathogenicity.

References in periodicals archive ?
We sequenced genes from 2 novel influenza A(H5N8) viruses isolated from domestic ducks in eastern China and evaluated their pathogenicity in chickens and mice.
The relevant aspects of human seasonal influenza and pandemic influenza are reviewed, and the occurrence and impact of zoonotic infections with avian influenza virus (H5N1) and other high and low pathogenicity avian influenza viruses are detailed.
Genes VPA1321 and VPA1376, which are located at the extremes of the pathogenicity island, were amplified by using primers designed using the Primer3 program (http://primer3.
The possible pathogenic role of this virus in acute respiratory infections has also been questioned; consequently, several types of studies have been proposed to obtain evidence of pathogenicity and proof of disease causation (3,4).
Viral replication and pathogenicity were evaluated in chickens, quails, pigeons, and mice.
Friend or Foe, a new program from DARPAs Biological Technologies Office, proposes to develop a platform technology that rapidly screens unfamiliar bacteria to establish their pathogenicity and even discover unknown pathogenic traits, necessary first steps for designing effective biosurveillance and countermeasures.
We examined in 2 mammalian models the pathogenicity and transmissibility of LPAI and HPAI H7N9 subtype viruses isolated from chickens in Tennessee (ck/TN) and evaluated the capacity for these viruses to replicate in a representative human respiratory cell line.
I read the case report "Culture-Specific Pathogenicity of Dhat (Semen Loss) Syndrome in an Arab/Islamic Society, Oman" published in the May 2017 issue of the Oman Medical Journal with interest.
Additionally pathogenicity of isolated Fusarium species was evaluated against nymph and adult of Bemisia tabaci.
In phytopathogens, the T3SS is encoded by hypersensitive response (HR), pathogenicity (hrp) and hrp conserved (hrc) genes, and it has been implicated in both the initiation of the disease during compatible interactions and the elicitation of plant defences, leading to resistance in incompatible interactions (Steinberger and Beer, 1988; Barny et al.
The objective of this study was to determine the pathogenicity, virulence and interactions between native Morelos state strains of Metarhizium anisopliae and Beauveria bassiana against P.
The discovery of NetB as the essential toxin trigger for the disease was followed by recognition that it forms part of a large plasmid-encoded 42 kb pathogenicity locus (NELoc-1).